Gripping means for job-presses.



L. G. CRUM. GRIPPING MEANS FORJOB PRESSES.,

APPLICATION FILED SEPT- 15 19 Patented Jan. 1, 1918.

2 SHEETSSHEBT I.

LYMHN CRUQ] I h. 6. CRUIVi. I GRLP'PINGE NEWS FOR JOB PR'ESSES.

APPLICATION FILED SEPT-1511917- Pfitented Jan. 1, 1918.

2 -8HEETSSHEET 2- E Wm I as 85. I means for mounting the fingers upon the 56 Fig. 1;

; STAT LYMAN a. sauna, or JAMEs'rowiI, Noam nnxb're.

To all whom it may concern Be itknown that ,I, LYMAN G r. GRUM, a citizen. of the" United States, residing at Jamestown, inthe county of Stutsman and 5 State of. North Dakota, haveinvented certain new and useful Improvements in Griping Means for Job-Presses, of which the ollowing is a specification, reference being had tov the accompanying drawings. '10 I vThis invention relates to paper grippers used .on job printin I presses, and partlcu larly to that class 0 grippers in whichthegri pers are mounted upon ;a base member an areadp stable toward-or from each:

other along said base member;

7 With, the paper grippers now in use on job presses, .it is common for theoperator to place a rubber band or 'cord, 'or' a plurality of these bands orcords around the grippers so as to extend across from one gripper to the other, but this is inefl'ective as oftentimes when the ink is sticky, the paper pulls through these bands and the bands or cords dc not hold the paper firmly.

The general object of my lnvention is to provide-a paper gripping device :in which the grippers are provided" with adjustable paper holding fingers, which may be moved into or out of parallel, relation to the grip-, pers, that .is, into'or out of operative posi tion, and which are slidable toward or from eachother along the length of'each gripper, so as to ad ust the fingers into proper relation. A further object is to provide improved grip ers, and improved means for holding the ngers in adjusted positions. A further object of the invention is to provide a device of this character, WhlCh is so constructed that it may be used in place of the ordinary grippers without in any way changing the construction of the press. Other objects will appear in the course of the following descri tion.

My invention is'i lustrated in the accompanying drawings, wherein Figure 1 is a top plan view of my improved paper gripper; i

Fig. 2 is a fragmentary sectional view of the paper gripper applied to a press; Fig. 3 is a. section on the line 3-3 of Fi 1'- Fig.1 is a section on the line 4 -4 of .tion shown in Fig. 5;

is a perspective view of the base "a recess 19 formed int y adjacent its outer corner. When this 1617613.;

.middle of thewire inward, thus increasing- GBIPPING MEANS non JoB-ranssns.

' Specification of Letters latent. Patented Jan, 1;, 1918,: Application filed September 15, 1917. serial No. 191,611.

of one of the slides which carry gripping fingers r Fig. 6 is a face elevation of the construc Fig. 7 member and one of the grippers; and-- Fig. 8 1s a fragmentary plan view of one of the grippers showing the manner in whlch the wire is tensioned.

Fig. 9, is a perspective view of the slide 20 and its finger;

Fig. 10 is a sectional view of a stadium;

the finger in elevation.

, comprising :3;

- Referring to these figures 10 designates; 7

the base, as it may be terme longitudinally extending bar or rail, which.

1s longitudinally slotted as at 11, this slot it extendmg nearly to the ends of the'bar or rail. This slot permits the rail to beheld upon the crossbar A of the press, as illustrated in Fig. 2, by means of bolts 12. Also extending longitudinally along the faceoft the rail, for its entire distance,.1s a groove 13. The inner face of thefbase 10 is'prk vided at its ends with outwardly project .1

.ing portions 1 1 and stretched tightly ove these PQIXZOIIS 14 and\ extending longitudi.

nally along the'inner face-=.-o,f this bar, .ori

rail 10 in spaced relation t0the greaterp01 l tion of this inner face is a very taut. wire 15. This wire is ordinarily fairly taut-but may be placed under even greater tension by.

means of a tightening device; comprising a rod 16 passing through an aperture in the] middle portion of the rail or bar 10, thi rod having an eye17 at one end which en gages around the .wire 15, this rod bein' connected to a lever 18 1 qnivotally mounted i e face of the bar 1 18 is turned in one direction, it will slackeli.

the tension of the wire 15 and whenturned?"*- in the other directionyit will draw the tongue 21,

15, as illustrated in Fig. 10, passes over these 5 each of these grippers and into the members 24; and then in behind the butt end of a finger 25, which is pivoted between the ears 22. It will thus be seen that the wire will press against the butt end ofthe finger andthat as thi butt end is flat, the wire will act toresist any movement or the finger in one direction or the other. In other words, when the finger is turned parallel to the bar 10, the wire will resist any opening of the fin er, and when the finger is extended perpendicularly to the bar 10, the wire will also resist any closing of the finger. Inasmuch as the wire passes over the slide 20, it follows that when the wire is tightened by operating the fastening device heretofore described, the wire will be drawn taut across the slide 20 and will hold this slide against accidental longitudinal movement. There are two of these slides 20 mounted upon the bar 10, one on each side of the middle of the bar as illustrated in Fig. 1, and these slides may be adjusted longitudinally along the whole extent of the bar 10 and the fingers may be turned out perpendicularly to the bar or in parallel relation to the bar, as it may be desired.

Slidingly mounted upon the bar 10 are the outwardly extending end pieces or grippers 26, one of which is illustrated in Fig. 7 in conjunction with the bar 10. As illustrated in Fig. 1, there are two of these grippers and each of these grippers is formed of a thin strip of wood or metal having a tongue at its butt end upon its inside face, this tongue being designated 27 and sliding within.the groove 13. A bolt 28 passes through slot 11 and by loosening this bolt, the gripper may be slid toward or from the middle of the bar 10 and then by tightening the bolt the griper is held in its adjusted position. Each of these grippers is also provided with a pair of sliding and pivoted fingers. To this end each of these grippers is formed at its ends with the projecting portions 29, and a wire 30 is tightly stretched over these pro jecting portions and in spaced relation to the inside edge of the oorrespoiuling gripper. The inside edge of the gripper is formed with a groove 31 and the middle of the Wire is connected to a tightening device, which is constructed in exactly the same manner as the tightening device previously described and consists of a rod 16 and a lever 18 dis posed in a recess in the upper edge face of the gripper near the outer corner so that when the lever is turned in one direction, the wire will be tightened and when turned 1,251.,sse

in the other direction, the wire will be slackened.

Operating upon the edge face of the gripper is a slide 32, as illustrated in Figs. 5 and 6. This slide 32 is formed with a longitudinally extending tongue adapted to engage'in the groove 31 and the outer edge of the slide is grooved as at 34 for the re ception of the wire 30. The under face of the slide is cut away and pivotally mounted upon this under face is a finger Bearing against a shoulder 36 on the slide is a spring 37, which is outwardly bowed and bears against the butt end of the finger 35 and against one side ta-ce ot the finger, when the finger is turned to a position parallel to the edge of the gripper. 'lhis spring 37 acts to yieldingly hold the linger in a projected or a retracted position in the same manner a. a spring in a knife blade holds a knife blade in a projected or retracted position. It will be noted from Fig. 3 that the fingers a", are disposed in the same plane as the inner face of the grippers upon which they are mounted and hence the lingers 25 must be deflected as at 38, so as to bring these fingers into the same plane. so that all of lhe lingers when in use will lie flat upon the paper.

In the practical use ol this device, it will be seen lhat eitl :r of the gripping fingers 25 may be turned out to a position at right angles with the base bar to or turned into a position parallel to the base bar, or lhat either ol" the lingers 35 may be turned out perpendicularly to the grip 'iers 2(3 or turned parallel thereto and that all ol thc gripping lingers may he used at one time or certain ot the gripping lingers turned into inoperative position. Thus in Fig l, i show the lateral gripping lingers 35 turned to a projected position and the fingers turned to an inopcralive position. Flu'thern'iore it will be obvious that the slides holding the gripping fingers may be shifted along the bar 10 or along the. grippers 26 so as to bring'lhe gripping lingers exactly in adjusted position for proper operation. The bar 10 is so formed that it may be used in place of the ordinary base bar supporting the ordinary gripping lingers and may be applied to any job press in the usual manner. It will be seen that this device is very simple, that it is relatively cheaply constructed and that it will be thoroughly eli'ective for the purpose in tended, that is, for preventing the paper sticking to the inked type after an impression has been made. It will be obvious that as the gripping fingers are adjustable, they may be arranged to engage any desired size of sheet or of card which is to be printed. Of course the sheet of paper which is to be printed is centered in the usual manner by gage pins. Various minor changes may be made in the details of construction. and ar rangcment of parts oi this device, Wltifafillij menses departing from the spirit of the invention.

Having thus described my invention, what I claim is 1. A paper gripping device for printing press beds, comprising a base, members slidably mounted on the baseand extending at right angles thereto, the members being adjustable toward or from each other, lingers carried by the base and by said members,

said fingers on the base being adjustable loi'igitudinally therealong and the fingers on said members being adjustable along said members in a direction at right angles to the direction of adjustment of the fingers on the base, all of said fingers being mounted for movement into or out of a parallel relation to the part upon which the fingers are mounted and means holding the fingers in.

porting member and engaged therewith at' its ends, slides mounted upon the suppor ing member and over which the wire passes, fingers carried by the slides, and means for tensioning the wire to clamp the slides in ad usted position, said means comprising a rod passing through the supporting member and having an eye engaging with said wire, and a. lever pivoted upon the supporting member and with which the end of the rod is pivotally engaged, said lever when thrown into one position tightening the wire and when shifted to another position slackening the wire.

i. A device of the character described. comprising a longitudinally extending SlOtr' ted bar, a wire extending along the inner edge face of said bar but spaced therefrom, a pair of slides having tongues, the slides being disposed between the wire and the face of the bar and the bar being longitudinally slotted to receive the tongues, fingers pivotally mounted upon the slides, means for ten- "-sion1ng the wire, to thereby increase the pressure on the slides and hold the slides in adjusted positions, a pair of grippers mounted upon the bar and having bolts extending into said slot of the bar whereby the grippers may be shifted nearer to or farther from each other, the grippers extending normally at right angles to the bar, a longitudinally extending wire mounted upon but disposed in spaced relation to the inner edge face of each gripper, slides mounted between said wire and the inner face of each gripper, pivoted gripping fingers mounted upon said slides, means for increasinglor decreasing the tension of said wire to thereby hold the slides in adjusted positions, or release the slides to permit of their longitudinal adjustinent.

5. In a. device'of the character described, a member having a longitudinally extending edge groove, a wire extending parallel to but in spaced relation to the inner edge face of the member, means engaging the middle of the wire for drawing the middle of the wire toward the member, or releasing the tension on the wire, a slide disposedbetween the wire and the inner edge face of the member and having a tongue engaging in the groove, the wire engaging the outer face of said slide, a gripping finger pivotally mounted upon said slide for movement into or out of parallel relation to the first named member, and a spring holding the gripping finger in aposition parallel to theiirst named men1- her or at right angles thereto.

6. A device of the character described.

comprising longitudinally slotted supporting bar formed upon its upper face with a longitudii'ially extending groove, grippers disposed upon the face of the bar and having tongues engaging in the groove, bolts passing through said grippers and through the slot of the bar whereby the gripers may be adjusted along the bar, gripping fingers slidably. mounted upon the bar and pivotally supported for movement into or out of a position at right angles to the bar, and gripping lingers slidably mounted upon the grippers and-pivotally supported for movement into or out of position at right angles to the grippers.

In testimony whereof I hereunto aflix my signature'in the presence of two witnesses.

LYMAN GQCRUM.

iVitnesses:

OsoAn J. SEILER, LYNN F. SEILEm 

